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Coverage / css-animations

CSS Animations Level 1

Specification: drafts.csswg.org/css-animations-1/. 3 interfaces defined here, 33 members exposed on Window (Web IDL). Group: Test DOM core.

Existence only: “present” means the name is defined where Web IDL puts it, not that it behaves as the standard says. The featured checks test behavior.

Share present per engine
EngineMembers presentInterfaces present
warpdom0.1.6maintainer's engine30% (10 of 33)2 of 3
happy-dom21.0.373% (24 of 33)3 of 3
jsdom30.1.330% (10 of 33)2 of 3
linkedom0.18.130% (0 of 33)0 of 3
9 of 9 interfaces
AnimationEvent3 memberswarpdom: Missinghappy-dom: Presentjsdom: Missinglinkedom: Missing
CSSKeyframeRule2 memberswarpdom: Presenthappy-dom: Presentjsdom: Presentlinkedom: Missing
CSSKeyframesRule6 memberswarpdom: Presenthappy-dom: Presentjsdom: Presentlinkedom: Missing
CSSRule2 members added to CSSRule (defined in CSS Object Model (CSSOM))warpdom: 2/2happy-dom: 2/2jsdom: 2/2linkedom: 0/2
Document4 members added to Document (defined in DOM)warpdom: 0/4happy-dom: 3/4jsdom: 0/4linkedom: 0/4
HTMLElement4 members added to HTMLElement (defined in HTML)warpdom: 0/4happy-dom: 4/4jsdom: 0/4linkedom: 0/4
MathMLElement4 members added to MathMLElement (defined in MathML Core)warpdom: 0/4happy-dom: 0/4jsdom: 0/4linkedom: 0/4
SVGElement4 members added to SVGElement (defined in Scalable Vector Graphics (SVG) 1.1 (Second Edition))warpdom: 0/4happy-dom: 3/4jsdom: 0/4linkedom: 0/4
Window4 members added to Window (defined in HTML)warpdom: 0/4happy-dom: 4/4jsdom: 0/4linkedom: 0/4

Probed 2026-10-19. Data: idl.json (CC BY 4.0).